KR20070081470A - Water supply device of laundry machine - Google Patents

Abstract

A water supply device of a washing machine is provided to improve washing competence of the washing machine by using foam water since a detergent is rapidly dissolved in the foam water. A water supply device of a washing machine includes a foam water generator. The foam water generator includes a rear case(12a), a water supply opening(13a), a main wall(14a), a front case(12b), a concave structure(15), and a cylindrical structure. The water supply opening is formed on a lower part of the rear case. The main wall embraces a side part and an upper part of the foam water generator. The concave structure is formed along the main wall for fitting the foam water generator with the front case. Some part of a left or right side of the foam water generator is protruded and forms the cylindrical structure. A hose is connected to the cylindrical structure.

Description

Water supply device of washing machine {WATER SUPPLY DEVICE OF LAUNDRY MACHINE}

The present invention relates to a water supply device for supplying water to a washing tank or a dehydration tank of a washing machine.

Prior art

In a so-called one-type fully automatic washing machine in which a washing tank also serves as a dehydration tank, an outer tub 2 is provided in the outer box 1, for example, as shown in FIG. 1. 2) The washing tank and the dehydration tank 3 are provided in the inside. The rotary blade 4 is provided in the bottom part of the washing tank and the dehydration tank 3. Under the outer tub 2, the mechanism part 5 which consists of a clutch, etc. and the motor 6 are provided. The water supply port 8 is provided in the back panel 7 which covers the upper and rear part of the outer case 1, and this water supply port 8 and the hose 10 are connected by the water supply case 9.

In the above-mentioned fully automatic washing machine, water is supplied to the washing tank and the dehydrating tank 3 before washing or rinsing (water supply). However, there is a problem that it takes time until the water sufficiently penetrates the laundry because much water bounces back to the laundry and scatters during the water supply. In addition, since the detergent is difficult to dissolve, it is necessary to provide a detergent case (not shown) in the water supply case 9, and to supply the detergent to the washing tank and the dehydration tank 3 after contacting and dissolving the detergent in water in the detergent case. There is also a problem.

As a conventional technique which solves these problems, water is made into a foam state by, for example, passing a water spray plate (Patent Document 1) provided in the middle of the water supply passage or a foam generating device (Patent Document 2) provided in the electronic water supply valve. Or the mist state by the mist supply apparatus (patent document 3 below) connected to the water supply case 9, etc. are mentioned.

[Patent Document 1] Japanese Patent Application Laid-Open No. 8-109666

[Patent Document 2] Japanese Patent Application Laid-Open No. 2001-347191

[Patent Document 3] Japanese Patent Application Laid-Open No. 2002-18187

However, the invention described in Patent Document 1 or 2 has a complicated structure. In addition, Patent Document 2 describes the effect of reducing the sound at the time of water supply, but there is no description in particular about the effect of preventing the scattering of water.

In addition, the invention described in Patent Document 3 has a problem that when one piece of laundry is covered with the entire laundry at the time of water supply (when rinsing after dehydration, it sometimes becomes such a "membrane state"), water becomes difficult to penetrate the laundry. There is. Even when water is being supplied while the washing tank and dewatering tank 3 is rotated, the penetration of water into the laundry is limited, and when the rotation speed of the washing tank and the dehydrating tank 3 reaches 100 rpm, there is a problem that the scattering of water cannot be suppressed.

The present invention provides a washing machine that is simple in structure, has less water splashing due to the laundry, has a low sound during water supply, and evenly penetrates the laundry even when water is supplied to the washing tank and the dewatering tank during high speed rotation. Therefore, it aims at solving the problem of the said prior art.

In order to achieve the above object, in the washing machine according to the present invention, the water from the hose is foamed by passing through a mesh-shaped filter and two sheets of slit-shaped filters superimposed up and down, and water is supplied into the washing tank and the dehydration tank. .

By supplying the foam water, the water that hits the laundry does not scatter and is absorbed by the laundry at a high speed evenly. In addition, since more detergent dissolves faster in the foam water, the washing ability of the washing machine is improved.

By supplying the foam water, the water that hits the laundry does not scatter and is absorbed by the laundry at a high speed evenly. In addition, since more detergent dissolves in foamed water more quickly, the washing ability of the washing machine is improved.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described in detail, referring an accompanying drawing.

1 is a diagram illustrating a configuration of a washing machine according to the present invention. Although the structure of the washing machine shown is substantially the same as the structure of the conventional washing machine, the foam water generating apparatus 11 is provided in the front-end | tip of the water supply hose 10, It is characterized by the feature.

2 is an external view of the foam water generator 11. The foaming water generating device 11 which concerns on this invention provided the filter mentioned later in the inside of the flat case 12 which can combine the back case 12a and front case 12b made from synthetic resin (plastic etc.). will be. The air intake slit 26 for accommodating air in the case 12 is provided in the back case 12a and the front case 12b, respectively.

3 is a vertical front view of the foam water generator 11. As shown, the lower part of the rear case 12a is the water supply opening 13a, and the side part and the upper part are enclosed by the circumferential wall 14a. Moreover, the structure (concave part) 15 for fitting with the front case 12b is provided along the circumferential wall 14a. In addition, a part of one of the left and right side portions (the right side in FIG. 1) protrudes to form a cylindrical portion 16, and a hose 10 is connected thereto (see FIG. 2).

In the figure, 17 is a groove for fitting with the filter 22 attached to the front case 12b, 23a / 23b is a filter of the same type, and 18a / 18b is a pole for the filter 23a / 23b (filter ( Projections for fixing 23a / 23b) to a predetermined position. In addition, the position of the filter 23a fixed by the pawl 18a is shifted slightly to the right of the position of the filter 23b fixed by the pawl 18b (specifically, by the width of the slit 24). The pole 18a protrudes slightly to the right side (inside of the foam water generator 11) than the pole 18b.

On the other hand, the lower part of the front case 12b also becomes the water supply opening part 13a, and the side part and the upper part are surrounded by the main wall 14b. Moreover, the protrusion (convex part) 19 for fitting with the back case 12a is provided along the circumferential wall 14b. In addition, a part of one of the left and right side portions (the left side in FIG. 1) protrudes to form the tubular portion 16, and a hose 10 is connected thereto (see FIG. 2).

In the figure, 22 shows a filter, 20 shows the groove | channel for fitting with the filter 23a / 23b attached to the rear case 12a, and 21 shows the pawl for the filter 23a / 23b. The pair of poles 21 are disposed on the diagonal points of the grooves 20.

When the rear case 12a and the front case 12b shown in FIG. 3 are fitted, the filter 22 attached to the front case 12b is fitted into the groove 17 of the rear case 12a, and the rear case Filters 23a / 23b attached to 12a are fitted into the grooves 20 of the front case 12b. FIG. 4: is a longitudinal side view of the foam water generating apparatus 11, and has shown the aspect of fitting of the back case 12a and the front case 12b. Moreover, the water supply opening part 13a and the water supply opening part 13b are fitted in the lower part of the case 12, and the rectangular water supply opening part 13 is formed. FIG. 5: is a bottom view of the foaming water generating apparatus 11, and has shown the case 12 seen from the water supply opening part 13 side.

In the case 12, two types of filters as shown in Figs. 6A and 6B are provided.

6 (a) shows the structure of the filter 22. As shown, the filter 22 is a mesh-shaped filter in which many small holes are arranged. This filter 22 is also made of synthetic resin such as plastic.

6 (b) shows the structure of the filters 23a / 23b. As shown, the filters 23a / 23b are slit-shaped filters in which a plurality of slits (opening portions) 24 and grate (non-opening portions) 25 are alternately arranged inside the outer edge.

If two filters of FIG. 6 (b) are attached to the case 12 as the filters 23a / 23b, respectively, the positions thereof are slightly displaced as described above, and as shown in FIG. 7, the filters 23a ) And the slit 24 of the filter 23b, the slit 24 of the filter 23a, and the grate 25 of the filter 23b overlap each other.

As a result, the water supplied from the hose 10 collides with one of the grate 25 of the filters 23a / 23b, and enters a foam state including air received from the air blowout slit 26 (also, The cross section of foam water is rectangular, and the longitudinal section is oval-shaped). In addition, since the thickness of the grate 25 is thinner than the thickness of the outer edge, the water is the slit 24 of the filter 23a, the grate 25 of the filter 23a, and the grate 25 of the filter 23b. It passes through the clearance gap with the slit 24 of the filter 23b, and reaches the water supply opening 13.

Since the water discharged from the water supply opening 13 is in a foam state, it does not scatter even if it hits the laundry in the washing tank and the dewatering tank 3, and permeates the laundry even at a high speed. Therefore, the apparent volume of water increases compared with the past, and the usage-amount of water can also be reduced. In addition, the sound during water supply is also reduced.

FIG. 8 is a graph showing the relationship between the rotation speed of the washing tank and the dehydration tank 3 and the amount of water scattered for each water supply method at each rotation speed. As in the washing machine according to the present invention, when the foaming water is supplied, it can be seen that even if the rotation speed of the washing tank and the dehydration tank 3 increases, the amount of water scattering can be reduced.

9 is a graph showing the amount of water absorbed into the laundry for each water supply method. It can be seen that the amount of water absorption increased by about 30% compared with the case of water supply as in the prior art.

In addition, since foamy water is also supplied to the detergent, more detergent dissolves more quickly. As a result, the amount of detergent used can be reduced, and the washing ability of the washing machine can also be improved. FIG. 10 is a table showing the solubility of detergent for each water supply method. FIG. It can be seen that the solubility of the detergent is improved in the case of supplying the foam water as compared with the case of water supply as in the prior art. In addition, even when the detergent is directly introduced into the washing tank and the dehydration tank 3, since the detergent can be sufficiently dissolved by the foam water, supply of water to the detergent casing becomes unnecessary, and mold generation and contamination of the detergent case are eliminated. Can be prevented.

In addition, the water supply of the foam water in the rinsing step may be performed intermittently (intermittent water supply). For example, as shown in FIG. 11, foamed water is watered for 1 minute, after 30 second stop, and foamed water is further watered for 30 seconds. By providing the stop time of water supply in this way, since the water supplied by the water supply just before is absorbed evenly by laundry, the efficiency of the rinsing with respect to the water supply volume further improves, and the water saving effect is also high. In addition, this intermittent water supply is not limited to water supply of foam water, but can also be performed by conventional water supply.

1 is a view showing the configuration of a washing machine according to the present invention.

2 is an external view of the foam water generator 11.

3 is a vertical front view of the foaming water generating device 11;

4 is a longitudinal side view of the foam water generator 11;

5 is a bottom view of the foam water generator 11.

6 shows the structure of the filters 22, 23a, 23b.

7 is a longitudinal bottom view of the foam water generator 11;

FIG. 8 is a graph showing a relationship between the rotation speed of the washing tank and the dehydration tank 3 and the amount of water scattered for each water supply method at each rotation speed. FIG.

9 is a graph showing the amount of water absorbed into laundry for each water supply method.

10 is a table showing the solubility of detergents for different water supply methods.

11 is a view showing a procedure of washing by the washing machine according to the present invention.

(Explanation of symbols for the main parts of the drawing)

1: trauma

2: the outer bird

3: washing and dehydrating tank

4: rotating wing

5: mechanical part

6: motor

7: rear panel

8: water inlet

9: water supply case

10: hose

11: foam water generator

12: case

12a: rear case

12b: front case

13, 13a, 13b: water supply opening

14a, 14b: main wall

15: structure

16: cylindrical part

17: home

18a, 18b: Paul

19: stone

20: home

21: Paul

22, 23a, 23b: filter

24: slit

25: grate

26: air blowing slit (air inlet)

Claims (1)

In the water supply apparatus provided in the water outlet of the washing tank or the dehydration tank of a washing machine, And a plurality of filters for making the water passing through the inside into a foam state.

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